Some people argue using _____ nature to meet our own needs may spell disaster, unless we start to look around and understand how ______ clean environment benefits us all.
A．/; aB．the; theC．the; a D．a(chǎn); a
A
考查冠詞;第一空不填，nature是抽象名詞，第二空填a，指一個(gè)清潔的環(huán)境，句意是：有些人認(rèn)為利用自然來滿足我們的需求可能會帶來災(zāi)難，除非我們開始環(huán)顧四周，理解一個(gè)清潔的環(huán)境怎么使我們所有人的受益。
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